Solve these math problems and answers using complete sentences. Follow the model. Modelo: 5+3= Cinco más tres son ocho.

1:Dos mas quince son diesiciete

2:veinte menos uno son diecinueve

3:cinco mas siete son doce

4:dieciocho mas doce son treinta

5:tres mas veintidos son veintecinco

6:seis menos tres son tres

7:once mas doce son veintitres

8:siete menos dos son cinco

9:ocho mas cinco son trece

10:23-14son nueve

Explanation:

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.